Southwest Airlines is currently in a rolling_out status with a high fleet coverage ratio of 86.2%, but no aircraft are yet equipped with Starlink as of the latest verified context. No observations or sightings exist on the PBI->BNA route, and no recent news updates indicate active deployment. Given the rollout is planned for summer 2026 and the fleet coverage is not yet realized, the probability is anchored conservatively at 0.30, reflecting the fleet coverage floor for rolling_out airlines with high fleet ratios, but not exceeding it due to lack of direct evidence.